Genetics & Punnett Square

Front

In a Punnett square, a lower case letter stands for a ____________ allele.

Back

recessive

Front

What do we call the physical expression of the genetic material of an organism?

Back

phenotype

Front

In animals, shaggy fur is dominant to short fur. The Punnett Square shows the genotypes of the offspring of a shaggy fur animal and a short fur animal. What were the genotypes of the parents? Options: FF and FF, Ff and ff, ff and ff, Ff and Ff

Back

Ff and ff

Front

In animals, shaggy fur is dominant to short fur. What percent of offspring will have short fur? Options: 0, 25, 50, 75, 100

Back

50

Front

In a punnet square where are the parent alleles written?

Back

outside of the boxes (top and left side)

Front

Heterozygous is when...

Back

the alleles are different.

Front

T = tall and t = short In the punnett square shown, what belongs in the missing square Options: tt, Tt, Bb, TT

Back

tt

Front

Which of the following alleles is homozygous (purebred) recessive? Options: Tt, tt, TT, t

Back

tt

Front

Genotype for a yellow plant (G = green, g = yellow)

Back

gg

Front

In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?

Back

25%